![]() Environmental conditions of at least 60% humidity and 9–11✬ are needed for larval development. If fly eggs have already hatched, they will have begun attacking the epidermal tissues (to varying degrees depending on life stage) and the number of maggots will dictate the extent of lesions present. This means no fly strike damage has yet occurred, but the rabbit may have been presented due to signs of the underlying disease, such as reduced appetite or perineal soiling. In the very early stages (up to 18 hours at 27✬), fly eggs will be present, but the eggs will not have hatched. The clinical signs encountered with a case of myiasis will depend on the duration of the disease. In older cases of myiasis, larger second- and third-stage larvae will be present, which will be easier to see and are likely to be associated with more severe soft tissue damage. Clumps of small eggs, looking like grains of rice, may be seen within the coat. These larvae only feed on skin debris and exudate, and so will cause mild inflammation, but not gross skin damage alone. The L1 stage maggots are only a few millimetres in length and can be missed during a brief examination. These are the inguinal glands and in the healthy rabbit are normally filled with a yellow–brown odiferous deposit. A common site for maggots to feed is in the two deep folds of skin either side of the anal orifice. ![]() Careful examination and removal are required to ensure none are missed.Ĭareful and systematic examination, particularly around the tail base, perineum and inguinal area, is required to avoid missing early cases of myiasis.
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